<?php

	echo "Hola Mundo";
	echo "<br>";
	echo "PHP y MySQL";

?>
<br>
<?php

	echo 15*3;
	echo "15*3";

?>
<br>
<?php
	echo "linea1<br>\n";
	echo "linea2<br>\n";//salto de linea en el codigo
	echo "linea3";
?>